20980179

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{3163}}^1$

素因数の和:3247

約数の個数: 24

約数和(自身を含む): 33563712

約数和(自身を除く): 12583533

約数列:

[1, 3, 9, 11, 33, 67, 99, 201, 603, 737, 2211, 3163, 6633, 9489, 28467, 34793, 104379, 211921, 313137, 635763, 1907289, 2331131, 6993393, 20980179]

約数ペア:

[(1, 20980179), (3, 6993393), (9, 2331131), (11, 1907289), (33, 635763), (67, 313137), (99, 211921), (201, 104379), (603, 34793), (737, 28467), (2211, 9489), (3163, 6633)]